From: Christian Marangi <ansuelsmth@gmail.com>
Date: Thu, 23 Oct 2025 13:37:00 +0000 (+0200)
Subject: airoha: an7583: add additional comments on EVB board
X-Git-Url: http://git.openwrt.org/?a=commitdiff_plain;h=ea850b5a18a7b5041000bfd77ed1be6f29ba7b75;p=openwrt%2Fstaging%2Fstintel.git

airoha: an7583: add additional comments on EVB board

On the Airoha AN7583 EVB there are 2 Aeonsemi AS21xxx PHY but only the
one connected to Serdes Ethernet is usable as the other connected to
Serdes PON is not actually HW connected (as the serdes is connected to
the BOSA port)

Add comments and disable the relevant PHY.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---

diff --git a/target/linux/airoha/dts/an7583-evb.dts b/target/linux/airoha/dts/an7583-evb.dts
index fdd5b2aa92..30f1cf0800 100644
--- a/target/linux/airoha/dts/an7583-evb.dts
+++ b/target/linux/airoha/dts/an7583-evb.dts
@@ -135,37 +135,41 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&mdio0_pins>;
 
-	as21xx_0: ethernet-phy@1d {
-		reg = <0x1d>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-
-		firmware-name = "as21x1x_fw.bin";
-
-		reset-deassert-us = <350000>;
-		reset-assert-us = <200000>;
-		reset-gpios = <&an7583_pinctrl 34 GPIO_ACTIVE_LOW>;
-
-		leds {
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			led@0 {
-				reg = <0>;
-				color = <LED_COLOR_ID_GREEN>;
-				function = LED_FUNCTION_LAN;
-				function-enumerator = <0>;
-				default-state = "keep";
-			};
-
-			led@1 {
-				reg = <1>;
-				color = <LED_COLOR_ID_GREEN>;
-				function = LED_FUNCTION_LAN;
-				function-enumerator = <1>;
-				default-state = "keep";
-			};
-		};
-	};
+	/* Present but not HW connected to GDM port */
+	/*
+	 * as21xx_0: ethernet-phy@1d {
+	 *		reg = <0x1d>;
+	 *		compatible = "ethernet-phy-ieee802.3-c45";
+	 *		status = "disabled";
+	 *
+	 *		firmware-name = "as21x1x_fw.bin";
+	 *
+	 *		reset-deassert-us = <350000>;
+	 *		reset-assert-us = <200000>;
+	 *		reset-gpios = <&an7583_pinctrl 34 GPIO_ACTIVE_LOW>;
+	 *
+	 *		leds {
+	 *			#address-cells = <1>;
+	 *			#size-cells = <0>;
+	 *
+	 *			led@0 {
+	 *				reg = <0>;
+	 *				color = <LED_COLOR_ID_GREEN>;
+	 *				function = LED_FUNCTION_LAN;
+	 *				function-enumerator = <0>;
+	 *				default-state = "keep";
+	 *			};
+	 *
+	 *			led@1 {
+	 *				reg = <1>;
+	 *				color = <LED_COLOR_ID_GREEN>;
+	 *				function = LED_FUNCTION_LAN;
+	 *				function-enumerator = <1>;
+	 *				default-state = "keep";
+	 *			};
+	 *		};
+	 * };
+	 */
 
 	as21xx_1: ethernet-phy@1f {
 		reg = <0x1f>;
@@ -200,16 +204,19 @@
 	};
 };
 
+/* GDM2 seems to be connected to PON */
+/*
+ *&gdm2 {
+ *	status = "disabled";
+ *
+ *	phy-handle = <&as21xx_0>;
+ *	phy-mode = "usxgmii";
+ *};
+ */
+
 &gdm3 {
 	status = "okay";
 
 	phy-handle = <&as21xx_1>;
 	phy-mode = "usxgmii";
 };
-
-&gdm2 {
-	status = "okay";
-
-	phy-handle = <&as21xx_0>;
-	phy-mode = "usxgmii";
-};